Results 81 to 90 of about 3,400 (193)
Pairing in neutron matter: New uncertainty estimates and three-body forces
, 2016 We present solutions of the BCS gap equation in the channels ${}^1S_0$ and ${}^3P_2-{}^3F_2$ in neutron matter based on nuclear interactions derived within chiral effective field theory (EFT).
Drischler, C. +3 more
core +1 more source
Newton's method in Riemannian manifolds
Journal of Numerical Analysis and Approximation Theory, 2008 Using more precise majorizing sequences than before [1], [8], and under the same computational cost, we provide a finer semilocal convergence analysis of Newton's method in Riemannian manifolds with the following advantages: larger convergence domain ...
Ioannis K. Argyros
doaj +2 more sources
Efficacy of the DFT+U formalism for modeling hole polarons in perovskite oxides
, 2014 We investigate the formation of self-trapped holes (STH) in three prototypical perovskites (SrTiO3, BaTiO3, PbTiO3) using a combination of density functional theory (DFT) calculations with local potentials and hybrid functionals.
Erhart, Paul +3 more
core +1 more source
Origin and Potentialities of the Selective Host‐Matrix Effect in Hydrogenated III‐V‐N Alloys.
Advanced Functional Materials, Volume 35, Issue 2, January 9, 2025.In hydrogenated Ga‐rich InGaAsN alloys, thermal annealing changes the mechanical properties of the matrix surrounding an N–H complex, by inducing an In (green spheres) clustering around N. The C2v${\mbox{C}}_{\rm 2v}$ complex (left side), favored in the pristine alloy, is replaced by the NHbc${\mbox{NH}}_{\rm bc}$ one (right side) in the annealed alloy,
Francesco Filippone +1 more
wiley +1 more source
Assessment of the TCA functional in computational chemistry and solid-state physics
, 2015 We assess the Tognetti-Cortona-Adamo (TCA) generalized gradient approximation correlation functional [J. Chem. Phys. 128:034101 (2008)] for a variety of electronic systems.
Constantin, L. A. +4 more
core +3 more sources
Expanding the applicability of Newton-Tikhonov method for ill-posed equations
Journal of Numerical Analysis and Approximation Theory, 2014 We present a new semilocal convergence analysis of Newton- Tikhonov methods for solving ill-posed operator equations in a Hilbert space setting. Using more precise majorizing sequences and under the same computational cost as in earlier studies such as [
Ioannis K. Argyros, Santhosh George
doaj +2 more sources
A semilocal convergence result for Newton’s method under generalized conditions of Kantorovich
Journal of Complexity, 2014 From Kantorovich's theory we establish a general semilocal convergence result for Newton's method based fundamentally on a generalization required to the second derivative of the operator involved. As a consequence, we obtain a modification of the domain of starting points for Newton's method and improve the a priori error estimates.
Ezquerro, J.A. +2 more
openaire +4 more sources
, 2019 We construct range-separated double-hybrid schemes which combine coupled-cluster or random-phase approximations with a density functional based on a two-parameter Coulomb-attenuating-method-like decomposition of the electron-electron interaction. We find
Kalai, Cairedine +2 more
core +2 more sources
Third-Order Newton-Type Methods Combined with Vector Extrapolation for Solving Nonlinear Systems
Abstract and Applied Analysis, 2014 We present a third-order method for solving the systems of nonlinear equations. This method is a Newton-type scheme with the vector extrapolation. We establish the local and semilocal convergence of this method.
Wen Zhou, Jisheng Kou
doaj +1 more source
Rigidity of infinitesimal momentum maps [PDF]
, 2016 In this paper we prove rigidity theorems for Poisson Lie group actions on Poisson manifolds. In particular, we prove that close infinitesimal momentum maps associated to Poisson Lie group actions are equivalent using a normal form theorem for SCI spaces.
Esposito, Chiara, Miranda Galcerán, Eva
core +1 more source